Question

How do you round `1.749` to the nearest tenth?

Answer 1

`1.749 rarr 1.7`

Explanation:

The nearest 'tenth' means the same as to one decimal place.

To decide whether to round up to the next tenth or down to the same tenth, look at the digit in the second decimal place (hundredths).

If it is `5` or more, round up.
If it is `4` or less, round down.

`1.7color(red)(4)9` will round to `1.7`

The `color(red)(4)` is not big enough to affect the `7`.

Note that the thousands place is not considered at all.